Perborax
n. [化]过硼酸钠
🗣️ 情景例句
She is giving me piano lessons in exchange for her English classes.
我教她英语，她教我弹钢琴。
The city is under financial pressure.
本市正遭遇财政困难。
At night, families often stay in the open air near their houses.
晚上很多人家常呆在附近户外。